2 Answers
2

If you post something on the internet you should expect that it has potential to be seen by everyone. But since your question is specific to "restricted friends" seeing things in their timelines... Though "No" may sound like the correct answer there is a way for the answer to be "Yes".

Let's say that you and I have a common "friend" (we can call George), I post a picture and restrict you from seeing it (but not George)...
George likes the picture and saves it to his computer, then uploads it to his photo album sharing it with you.

It is now showing in his timeline and you can see that image that I was restricting from you.

Had "George" not taken the extra step, Facebook would recognize that I didn't want you to see the image and would always prevent others from sharing it with you.

George can also simply click the Share link. The photo will be re-shared with his friends, using privacy settings of George's choosing.
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PhongAug 2 '13 at 18:40

@phong Though he can re-share, doing this does not make the image visible to the restricted person. Facebook will continue to restrict the image even if you specifically share with the restricted person. But once the image is saved as "George's" it is all his to control. The best way to see it in action is to try it with two other friends like I did.
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Xavier CastoAug 2 '13 at 22:51

No. Somebody who is explicitly restricted from seeing a certain item on Facebook will not be able to see that item, regardless of any actions by a mutual friend of both the item-owner and the restricted person.